Державне Підприємство "Український Інститут По Проектуванню Металургійних Заводів"
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Державне Підприємство "Український Інститут По Проектуванню Металургійних Заводів"filedCriticalДержавне Підприємство "Український Інститут По Проектуванню Металургійних Заводів"
Priority to UAU201303233UpriorityCriticalpatent/UA82397U/en
Publication of UA82397UpublicationCriticalpatent/UA82397U/en
Perforating, Stamping-Out Or Severing By Means Other Than Cutting
(AREA)
Forging
(AREA)
Abstract
A method of producing shells on a rotary piercer includes rotary piercing by drive rollers on a conical mandrel of a continuous blank in a shell, continuous rolling of its front end in a gauge, calibration of the shell portion, further opening of idle rollers. The idle rollers are approached for the gauge opening that equals the outer diameter of shell, and are opened at the time of release of the conical mandrel from the metal. Upon termination of the piercing process the idle rollers are approached for the opening of gauge, which is equal to the diameter of the cylindrical mandrel.
UAU201303233U2013-03-182013-03-18Method of producing shells on rotary piercer
UA82397U
(en)